For example some species of baleen whale such as the humpback whale are very solitary and spend much of their lives alone which makes them much less social than other groups of Cetacea such as the killer whale (the largest of the dolphin species) which often travels in groups or pods of up to 30 or more.
a combining form meaning âhealer,â âmedicine,â âhealing,â used in the formation of compound words: iatrogenic. Origin of iatro-. < Greek, combining form of iÄtrÃ³s healer, equivalent to iÃ¢(sthai) to heal + -tros noun suffix. Word Origin and History for iatro-.
âItsâ is a possessive pronoun: the possessive form of âitâ and, as we'll see below, possessive pronouns never use an apostrophe. âIt'sâ is a contraction of the phrase âit isâ (or sometimes âit hasâ), and contractions always use an apostrophe to indicate the letters omitted when running the two words together. Rule 1. If you mean âit isâ, or âit hasâ, write âit'sâ. Otherwise, write âitsâ. Examples: 1  Aim the rifle and pull its trigger. ( 2 Possessive: the trigger belongs to the rifle.). 3  When it's time, flip the burgers. ( 4 Contraction: âWhen it is timeâ¦â).